Patent US4564308A successfully refreshed from Google Patents.
US4564308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring rod for strap
Assignee: MASHIDA TOORU
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Filing: 1983-02-25
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Granted: 1986-01-14
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Expires: 2003-02-25
Abstract
Abstract The invention provides a spring rod for a strap. A stationary member with a projection is inserted and fixed at one end of a cylinder with a longitudinal slit. A slider is slidably inserted in the cylinder with a spring interposed between the slider and the stationary member. The slider has a projection which has a tongue protruding through the slit of the cylinder.
Inventors
- 👤 Iwao Ikegami
- 👤 Tooru Mashida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:15
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/14; G04B37/1486; G04B37/1493; A; A44; A44C; A44C5/00; A44C5/14; Y; Y10; Y10T; Y10T24/00; Y10T24/47; Y10T24/4718; Y10T24/4782
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
A spring rod for a strap, comprising a cylinder having a first projection at one end thereof and a longitudinal slit extending from the other end thereof, a slider which is slidably mounted at the other end of said cylinder and which has a second projection on an outer end thereof, and a biasing spring interposed between said first projection and said slider, wherein said cylinder has a stop for said slider at the other end thereof, and wherein said stop comprises a pipe which is inserted into said cylinder.
Claim 2
Dependent Claim
90 words
A spring rod for a strap, comprising a cylinder having a first projection at one end thereof and a longitudinal slit extending from the other end thereof, a slider which is slidably mounted at the other end of said cylinder and which has a second projection on an outer end thereof, and a biasing spring interposed between said first projection and said slider, wherein said cylinder has a stop for said slider at the other end thereof, and wherein said stop comprises a pipe which is inserted into said cylinder.
Claim 3
Dependent Claim
18 words
A spring rod according to claim 1, wherein said pipe has a slit along an entire length thereof.
Claim 4
Dependent Claim
92 words
A spring rod for a strap, comprising a cylinder having a first projection at one end thereof and a longitudinal slit extending from the other end thereof, a slider which is slidably mounted at the other end of said cylinder and which has a second projection on an outer end thereof, and a biasing spring interposed between said first projection and said slider, wherein said cylinder has a stop for said slider at the other end thereof, and wherein said stop comprises a zigzag slit at the other end of said cylinder.
Claim 5
Dependent Claim
92 words
A spring rod for a strap, comprising a cylinder having a first projection at one end thereof and a longitudinal slit extending from the other end thereof, a slider which is slidably mounted at the other end of said cylinder and which has a second projection on an outer end thereof, and a biasing spring interposed between said first projection and said slider, wherein said cylinder has a stop for said slider at the other end thereof, and wherein said stop comprises a zigzag slit at the other end of said cylinder.
Claim 6
Dependent Claim
93 words
A spring rod for a strap, comprising a cylinder having a first projection at one end thereof and a longitudinal slit extending from the other end thereof, a slider which is slidably mounted at the other end of said cylinder and which has a second projection on an outer end thereof, and a biasing spring interposed between said first projection and said slider, wherein said first projection is slidable relative to said cylinder, and wherein said first projection is formed on a pin which is inserted inside a stop arranged inside said cylinder.
Claim 7
Dependent Claim
93 words
A spring rod for a strap, comprising a cylinder having a first projection at one end thereof and a longitudinal slit extending from the other end thereof, a slider which is slidably mounted at the other end of said cylinder and which has a second projection on an outer end thereof, and a biasing spring interposed between said first projection and said slider, wherein said first projection is slidable relative to said cylinder, and wherein said first projection is formed on a pin which is inserted inside a stop arranged inside said cylinder.
Claim 8
Dependent Claim
17 words
A spring rod according to claim 4, wherein said stop comprises a pipe with a longitudinal slit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |